Notes Regarding Use Of Vacuum Pumps Of Other Manufacturers; Inert Gas Connection - Binder vdl 23 Operating Manual

4.2.1 Notes regarding use of vacuum pumps of other manufacturers

Connection to a vacuum source
Connect the vacuum connection (13) (small flange DN 16) at the back of the chamber at the top to a vac-
uum pump or domestic vacuum system via a vacuum conduit or fixed vacuum tubing.
Within the European Union, units that will be operated in potentially explosive areas have to
meet the requirements of ATEX Directive 2014/34/EU. Follow the safety instructions in chap.
1.5.
Excessive low pressure.
Risk of technical defects.
∅ The end vacuum must NOT fall below the permissible level of 10
 Install a pump according to the permissible end vacuum or limit it via a vacuum control-
ler.
Extracted vapors can have a health damaging and/or corrosive effect on the chamber and pump.
Release of extracted vapors.
Damage to health.
Corrosion of oven and pump.
 Conduct the extracted vapors e.g., into a fume extractor facility. Connect a suitable
hose to the vacuum pump outlet (that may be located in the vacuum module).
4.3

Inert gas connection

When operating the VDL vacuum drying oven with inert gas, correctly follow the technical ventilation
measures, as described in the DGUV guidelines 213-850 on safe working in laboratories (formerly
BGI/GUV-I 850-0, BGR/GUV-R 120 or ZH 1/119, issued by the employers' liability insurance association)
(for Germany).
During operation with inert gas, the chamber is supplied with an oxygen displacing gas (e.g. N
gases in high concentrations are hazardous to health. They are colorless and almost odorless and there-
fore practically imperceptible. Inhalation of inert gases can cause drowsiness up to respiratory arrest.
When the O content of the air decreases below 18%, there is risk of death from lack of oxygen. Any gas
2
that might escape has to be led out via good room ventilation or a suitable exhaust system.
High concentration of inert gas.
Risk of death by suffocation.
∅ Do NOT set up chambers in non-ventilated recesses.
 Ensure technical ventilation measures.
 Respect the relevant regulations for handling these gases.
 When decommissioning the vacuum drying oven, shut off the inert gas supply: Close
valve (6).
VDL (E2.1) 05/2016
CAUTION
CAUTION
WARNING
-2
mbar / 0.0003 inHg.
). Inert
2
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